Physics Module 4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | The principles of nonmoving electrical charges.
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| Electrodynamics | show 🗑
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| show | A metal or other substance with electrons that are free to produce a current.
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| Insulators | show 🗑
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| show | A property of matter
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| show | The SI unit (abbreviated as C) equal to the electrical charge of 6.25 x 1018 electrons. This is a negative number for a negative charge; a positive charge of 1 C is equal to the same number of protons.
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| show |
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| show | The principle that electrostatic force increases directly as the product of the two charges increases. The force decreases in an inverse relation with the square of the distance between the two objects.
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| Inverse square law | show 🗑
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| show | Friction, contact, and induction
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| Electrification | show 🗑
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| show | The resistance caused by one object moving against or through another. Friction is also one of three forms of electrification of an object; it occurs by rubbing electrons off one object and depositing them on another.
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| Contact | show 🗑
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| Induction | show 🗑
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| Electric potential | show 🗑
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| The concentration of charges on a curved surface of a conductor will be greatest: | show 🗑
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| When your charged fingertip touches a doorknob and creates a static spark, this is electrification by? | show 🗑
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| The smallest unit of negative charge resides with which of the following? | show 🗑
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| Why do we base the measure of electric charge on electrons? | show 🗑
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| show | Electric potential
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| show | The unit of measurement (abbreviated as V) for electric potential; the difference in electric potential between two points.
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| Current | show 🗑
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| Resistance | show 🗑
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| show | The SI unit for current flow (abbreviated as A), or amount of charge per second, or how many electrons are flowing past a particular point in the current in 1 second; 1 A equals 1 coulomb flowing by in 1 second.
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| show | The SI unit for resistance, shown by the Greek letter omega
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| show | Ampere
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| show | Ampere=Coulombs/Seconds
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| Direct current (DC) | show 🗑
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| show | The type of current in which electrons alternate direction of flow as the electric potential switches back and forth.
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| The amount of resistance of a conductor depends on what four things? | show 🗑
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| show | Volts
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| In which medium will electrons jump between electrodes? | show 🗑
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| show | Current
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| Which of the following is measured as the ratio of energy to charge? | show 🗑
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| What unit of measure is based on the resistance of a standard volume of mercury? | show 🗑
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| Electric circuit | show 🗑
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| show | A section of special wire, usually encased in glass, that quickly melts if the current flowing through it rises too high.A
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| show | If the current flowing through it rises above a certain level, the circuit breaker flips its internal switch to open the circuit and stop the electric flow. Circuit breakers protect against short circuits and shock hazards.
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| show | Something that is able to absorb electrical charges.
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| An electrical device with an abundance of electrons will do which of the following when grounded? | show 🗑
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| Which of the following is a common conductor? Plastic, copper, glass, or wood? | show 🗑
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| show | They have few free electrons
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| A closed circuit will conduct electricity. T or F? | show 🗑
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| Allows electrons to flow in only one direction | show 🗑
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| show | Positive
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| The movement of which of the following is most often recognized as electricity? | show 🗑
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| Which of the following will move in solid conductors? | show 🗑
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| According to Coulomb's law, what will happen to the electrostatic force between two charges if the distance between them is cut in half? | show 🗑
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| When electrons are rubbed off one object and deposited to another, this is electrification by: | show 🗑
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| show | Increases
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| Which of the following are required for electric current to exist? | show 🗑
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| show | Low
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| In which media will ions drift towards the oppositely charged electrode? | show 🗑
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| show | Resistance
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| Nonmetals make the best conductors? T or F? | show 🗑
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| Which of the following is a common insulator? Plastic, aluminum, water or gold? | show 🗑
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| An open circuit will conduct electricity? T or F? | show 🗑
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| What purpose does a circuit breaker serve in an electric circuit? | show 🗑
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| An electrical device with a deficiency of electrons will do which of the following when grounded? | show 🗑
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
volcomgrl12